# 21 Tauri

> star in the constellation Taurus

**Wikidata**: [Q60525024](https://www.wikidata.org/wiki/Q60525024)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/21_Tauri)  
**Source**: https://4ort.xyz/entity/21-tauri


## References

1. SIMBAD
2. The radial velocities spectral types and projected rotational velocities of 633 bright northern A stars
3. Spectral classification of 533 B8-A2 stars and the mean absolute magnitude of A0V stars
4. Two-dimensional spectral classification by narrow-band photometry for B stars in clusters and associations
5. Photoelectric spectrophotometry. II. Monochromatic colors of O, B and A-type stars
6. Six-color photometry of stars. VIII. The colors of 409 stars of different spectral types
7. Photoelectric spectrophotometry. I. Hydrogen line intensities of O, B and A type stars
8. A spectroscopic study of the Pleiades
9. Absolute Helligkeiten von 115 B-Sternen
10. Photoeletric measures of hydrogen-line absorption in early-type stars
11. Gaia Data Release 2. Observational Hertzsprung-Russell diagrams
12. A Gaia DR2 view of the open cluster population in the Milky Way
13. Gaia Data Release 1. Open cluster astrometry: performance, limitations, and future prospects
14. Zodiacal Exoplanets in Time (ZEIT). V. A Uniform Search for Transiting Planets in Young Clusters Observed by K2
15. Near‐ and Mid‐Infrared Photometry of the Pleiades and a New List of Substellar Candidate Members
16. Catalogue of Stellar Photometry in Johnson's 11-color system
17. VizieR Online Data Catalog: 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)
18. Gaia Early Data Release 3
19. Pulkovo Compilation of Radial Velocities for 35 495 Hipparcos stars in a common system
20. Fundamental Properties of Co-moving Stars Observed by Gaia
21. The IACOB project. III. New observational clues to understand macroturbulent broadening in massive O- and B-type stars
22. Gaia Data Release 2
23. Rotational velocities of A-type stars. IV. Evolution of rotational velocities